摘要： 为明确田间用于防治粉虱及其他目标害虫的杀虫剂对丽蚜小蜂的影响,测定了9种常用杀虫、杀螨剂对丽蚜小蜂卵、幼虫、蛹和成虫的致死效应。试验结果表明,不同类型的杀虫剂以及同类杀虫剂对不同发育阶段丽蚜小蜂的存活情况均有所差异。其中,菊酯类和有机磷类药剂对丽蚜小蜂的杀伤力最大,生长调节剂灭蝇胺杀伤力最小。在丽蚜小蜂的各发育阶段,成虫和卵期对药剂最为敏感,蛹期有蛹壳包被,药剂对其影响最小。
关键词:
杀虫剂,
天敌,
丽蚜小蜂,
致死效应
Abstract: The objective of this laboratory study was to determine if parasitoid could be conserved against whitefly incorps where insecticides were also applied for other pest species. Lethal effects of nine insecticides and acaricide were e-valuated in the laboratory on eggs,larvae,pupae and adults of the parasitoid Erccasia formosa. The results showed thesurvival ratio varied according to insecticide and developmental stage. The pyteghroid and organophosphates insecticideshad the highest toxic effect on Eyccarsia formosa，the toxicity of the insect growth regulator ( IGR) was lowest. All insecti-cides caused significant mortality to adult and eggs of Encarsia formosa in its host,but treatment of insecticide to pupaehad less effect on emergence.
Key words:
Insecticide,
Controlling parasite,
Encarsda formosa,
Lethal effects
中图分类号:
徐维红, 谷希树, 刘佰明, 胡学雄, 白义川, 李洪安. 常用杀虫剂对粉虱天敌-丽蚜小蜂的致死效应[J]. 华北农学报, 2008, 23(2): 188-190. doi: 10.7668/hbnxb.2008.02.042.
XU Wei-hong, GU Xi-shu, LIU Bai-ming, HU Xue-xiong, BAI Yi-chuan, LI Hong-an. Lethal Effects on Some Pesticides on Encarsia formosa,An Controlling Parasite of Whitefly[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(2): 188-190. doi: 10.7668/hbnxb.2008.02.042.